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Text file src/go.opentelemetry.io/otel/internal/shared/otlp/otlpmetric/oconf/tls.go.tmpl

Documentation: go.opentelemetry.io/otel/internal/shared/otlp/otlpmetric/oconf

     1// Code created by gotmpl. DO NOT MODIFY.
     2// source: internal/shared/otlp/otlpmetric/oconf/tls.go.tmpl
     3
     4// Copyright The OpenTelemetry Authors
     5//
     6// Licensed under the Apache License, Version 2.0 (the "License");
     7// you may not use this file except in compliance with the License.
     8// You may obtain a copy of the License at
     9//
    10//     http://www.apache.org/licenses/LICENSE-2.0
    11//
    12// Unless required by applicable law or agreed to in writing, software
    13// distributed under the License is distributed on an "AS IS" BASIS,
    14// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    15// See the License for the specific language governing permissions and
    16// limitations under the License.
    17
    18package oconf
    19
    20import (
    21	"crypto/tls"
    22	"crypto/x509"
    23	"errors"
    24	"os"
    25)
    26
    27// ReadTLSConfigFromFile reads a PEM certificate file and creates
    28// a tls.Config that will use this certifate to verify a server certificate.
    29func ReadTLSConfigFromFile(path string) (*tls.Config, error) {
    30	b, err := os.ReadFile(path)
    31	if err != nil {
    32		return nil, err
    33	}
    34
    35	return CreateTLSConfig(b)
    36}
    37
    38// CreateTLSConfig creates a tls.Config from a raw certificate bytes
    39// to verify a server certificate.
    40func CreateTLSConfig(certBytes []byte) (*tls.Config, error) {
    41	cp := x509.NewCertPool()
    42	if ok := cp.AppendCertsFromPEM(certBytes); !ok {
    43		return nil, errors.New("failed to append certificate to the cert pool")
    44	}
    45
    46	return &tls.Config{
    47		RootCAs: cp,
    48	}, nil
    49}

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